(8x^2+2x+8)+(3x^3+7x+4)=
8x^2+2x+8+3x^3+7x+4
3x^3+8x^2+(2+7)x+12=
3x^3+8x^2+9x+12
Answer: Option A. 3x^3+8x^2+9x+12
Answer:
Not accurate
Step-by-step explanation:
3+9+9=21
Answer:
y= 2/3x - 13/3
Step-by-step explanation:
i explain in the picture :D!
Answer:

Step-by-step explanation:
Surface area → area of 2 bases + area of 6 rectangles
Area of base is given
Area of rectangle → length × width

Answer:
it is 29in
Step-by-step explanation: